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Charging battery off Yamaha generator ?

Dr__Feelgood
Explorer
Explorer
I just bought yamaha 2000isV2 generator. It states in the manual if charging a 12 volt battery through the 12 V mode, you should turn off the economy mode,which I guess means the generator is running max.It puts out 8 amps. Would I be better off just plugging the generator 110V into shore power with 15 amp adapter?For now I just have the charger converter that came with the 2008 Pastime Camper( I intend to upgrade in the future)
7 REPLIES 7

time2roll
Nomad
Nomad
Use both until you get that converter upgraded. Sooner the better.

_DJ_1
Explorer II
Explorer II
If you want a fast, safe and efficient charge get this external terminal from Summit Racing, start your jenny and plug in a smart stand alone charger like a Schumacher.
'17 Class C 22' Conquest on Ford E 450 with V 10. 4000 Onan, Quad 6 volt AGMs, 515 watts solar.
'12 Northstar Liberty on a '16 Super Duty 6.2. Twin 6 volt AGMs with 300 watts solar.

Dr__Feelgood
Explorer
Explorer
Thanks for that sound info

GordonThree
Explorer
Explorer
The "12v" output isn't very well regulated either (that's why they advise to turn eco off).

Count me as another vote for letting the TC's converter handle the charging.
2013 KZ Sportsmen Classic 200, 20 ft TT
2020 RAM 1500, 5.7 4x4, 8 speed

trail-explorer
Explorer
Explorer
Dr. Feelgood wrote:
Would I be better off just plugging the generator 110V into shore power with 15 amp adapter?


Yes, that will be a better way of charging, and consume less generator fuel.
Bob

mkirsch
Nomad II
Nomad II
You are definitely better off using the camper's converter to charge batteries.

8 Amps is better than nothing in a pinch, the converter in most campers can charge much faster than that.

At 8 Amps, a 105Ah battery would take about 7 hours to charge from a half-discharged state. A good converter would to top it off in 2-3 hours.

Putting 10-ply tires on half ton trucks since aught-four.

jimh406
Explorer III
Explorer III
Probably so. You'd also get the benefit of a better charging system assuming the Pastime has a pretty good charger and have the benefit of using other AC appliances if desired.

'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.

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